Insights

Sustainability Opportunity Sylfen focuses on local energy storage using hydrogen with a reversible high temperature system acting as electrolyser and fuel cell. This aligns with customers seeking renewable energy integration, energy resilience, and decarbonization, making it a compelling value proposition for sustainable buildings and campuses.

European Expansion Recent office expansions in Europe and relocation of operations to Le Cheylas indicate growth and increasing regional activity. Target potential customers in Western Europe who are pursuing on-site energy storage and microgrids to support reliability and energy cost management.

Industrial Collaboration Past partnerships with AKKA Group for building self-sufficient renewables suggest there is appetite for engineering and data-driven collaboration. This could open doors for large-scale building projects, smart grid integration, and joint development opportunities with engineering and aerospace/industrial partners.

Small Team, Niche Focus With a small team and revenue under one million, Sylfen represents a specialized, high-value offering. This creates a sales approach centered on streamlined pilots, clear ROI cases, and quick decision cycles with property owners, facility managers, and energy procurement teams.

Hydrogen as a Sell Point Smart Energy Hub stores energy as hydrogen and can supply power/heat or be fed to fuel cell vehicles. Emphasize the versatility of hydrogen storage for commercial buildings, microgrids, and EV-ready facilities to broaden cross-sell opportunities across energy, mobility, and building technology segments.

Similar companies to Sylfen

Sylfen Tech Stack

Sylfen uses 7 technology products and services including Cloudflare, Cloudflare DNS, Twemoji, and more. Explore Sylfen's tech stack below.

  • Cloudflare
    Content Management System
  • Cloudflare DNS
    Domain Name Services
  • Twemoji
    Font Scripts
  • Marketing Automation
  • Yoast SEO
    Search Engines
  • ZURB Foundation
    UI Frameworks
  • Google Analytics
    Web Analytics

Media & News

Sylfen's Email Address Formats

Sylfen uses at least 1 email format:
Sylfen Email FormatsExamplePercentage
First.Last@sylfen.comJohn.Doe@sylfen.com
100%

Frequently Asked Questions

What is Sylfen's official website and social media links?

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Sylfen's official website is sylfen.com and has social profiles on LinkedIn and Crunchbase.

How much revenue does Sylfen generate?

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As of July 2026, Sylfen's annual revenue is estimated to be <$1M.

What is Sylfen's SIC code and NAICS code?

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Sylfen's SIC code is 7299 - Miscellaneous Personal Services, Not Elsewhere Classified and NAICS code is 3353 - Electrical Equipment Manufacturing.

How many employees does Sylfen have currently?

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As of July 2026, Sylfen has approximately 8 employees across 1 continents, including Europe. Key team members include Ingénieur Système Automaticien: H. L. and Procurement Manager / Responsable Achats Et Logistique: J. F. Explore Sylfen's employee directory with LeadIQ.

What industry does Sylfen belong to?

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Sylfen operates in the Electrical Equipment Manufacturing industry.

What technology does Sylfen use?

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Sylfen's tech stack includes Cloudflare, Cloudflare DNS, Twemoji, HubSpot, Yoast SEO, ZURB Foundation and Google Analytics.

What is Sylfen's email format?

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Sylfen's email format typically follows the pattern of First.Last@sylfen.com. Find more Sylfen email formats with LeadIQ.

When was Sylfen founded?

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Sylfen was founded in 2015.
Sylfen logo

Sylfen

Electrical Equipment ManufacturingAuvergne-Rhône-Alpes, France2-10 Employees

Sylfen develops energy storage solutions that convert surplus renewable electricity into hydrogen, enabling local energy management and a carbon-free energy cycle. Its core technology is a high-temperature reversible system that operates as both an electrolyser and a fuel cell, leveraging patents from the CEA. The Smart Energy Hub is designed for sustainable buildings, providing a secure and connected way to store energy as hydrogen and later use it for power and heat or feed the local grid. When stored hydrogen is unavailable, the hub can generate power and heat from natural gas or biogas, and hydrogen can be used as a clean fuel for vehicles.

The company is based in Le Cheylas, in the Auvergne-Rhône-Alpes region of France, with roots as a Grenoble-based start-up. It operates with a small team and has expanded its footprint in Europe, including relocating its industrial operations to its historic site in Le Cheylas.

Section iconCompany Overview

Website
sylfen.com
SIC Code
7299 - Miscellaneous Personal Services, Not Elsewhere Classified
NAICS Code
3353 - Electrical Equipment Manufacturing
Founded
2015
Employees
2-10

Section iconFunding & Financials

  • <$1M

    Sylfen's revenue is estimated to be in the range of <$1M

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